Ventilator for water closets

ABSTRACT

A ventilator attachment for bathrooms and the like which is adapted for use with the ventilator disclosed in application Ser. No. 882,815 so that the ventilator disclosed in said application may be employed with water tanks in which, for example, the overflow channel or pipe is integral with a wall of the tank. This attachment employs a tube having one end fitting into the inlet of the ventilator hood and the other end fitting into the overflow pipe of the tank. An elbow pipe having one end attached to the tube and having the other end positioned below the water line of the tank is provided to drain any excess water into the overflow pipe. Another embodiment of this device employs a T-type coupling for connecting the ventilator pipe to the water pipe leading to the toilet bowl in flush-type toilets. This T-type connection is provided with a baffle inside thereof to deflect the water flow therethrough and keep it from flowing into the ventilator pipe.

United States Patent Martz [451 Sept. 19, 1972 [541 VENTILATOR FOR WATER CLOSETS [211 App]. No.: 66,346

Related U.S. Application Data [63] Continuation-impart of Ser. No. 882,815, Dec.

8, 1969, Pat. No. 3,626,554.

[52] U.S.Cl ..4/213 [51] lnt.C1 ..E03d 9/04,E03d 9/05 [58] FieldotSearch ..4/213,214,215,216,217, 4/218 [56] References Cited UNITED STATES PATENTS 3,192,539 7/1965 Martz ..4/218 3,188,658 6/1965 Dixon ..4/215 2,240,130 4/1941 Carothers......................4/213 1,342,716 6/1920 Johnston ..4/213 1,351,854 9/1920 Klemme ..4/216 2,009,054 7/1935 Mooney ..4/213 2,042,271 5/1936 Moore ..4/213 2,126,131 8/1938 Orebaugh ..4/213 2,279,789 4/1942 Jentzer ..4/213 3,366,979 2/ 1968 Johnston ..4/213 Primary Examiner-Frederick L. Matteson Assistant Examiner-D. Massenberg Attorney-Allen and Chromy [57] ABSTRACT A ventilator attachment for bathrooms and the like which is adapted for use with the ventilator disclosed in application Ser. No. 882,815 so that the ventilator disclosed in said application may be employed with water tanks in which, for example, the overflow channel or pipe is integral with a wall of the tank. This attachment employs a tube having one end fitting into the inlet of the ventilator hood and the other end fitting into the overflow pipe of the tank. An elbow pipe having one end attached to the tube and having the other end positioned below the water line of the tank is provided to drain any excess water into the overflow pipe. Another embodiment of this device employs a T-type coupling for connecting the ventilator pipe to the water pipe leading to the toilet bowl in flush-type toilets. This T-type connection is provided with a baffle inside thereof to deflect the water flow therethrough and keep it from flowing into the ventilator pipe.

3 Claims, 5 Drawing Figures PA'TENTEDsEm m2 3591.568

INWN'IYII. W\LLIAM L. MARTZ ATTO Y5 1 VENTILATOR FOR WATER CLOSETS DESCRIPTION OF THE INVENTION This application is a continuation-in-part of my application Ser. No. 882,815 filed Dec. 8, 1969 now US. Pat. No. 3,626,554 for Ventilator for Water Closets.

This invention relates to ventilators for water closets.

An object of this invention is to provide an improved device for attaching the ventilating apparatus to a water closet for efficiently removing odors that appear in the toilet bowl during use.

Another object of this invention is to provide a relatively inexpensive attachment whereby the ventilator disclosed in the aforesaid application may be used with various water closets even including those in which the overflow pipe is integral with a wall of the water tank.

Still another object of this invention is to provide a bathroom ventilator in which the odors from the toilet bowl are drawn through the overflow pipe of the water tank into the ventilator pipe, said ventilator pipe being connected to the overflow pipe of the water tank through an attachment which includes a short pipe having one end fitted into the overflow pipe and having the other end fitted into the ventilator hood that is positioned in the tank, said short length of pipe also having an elbow attached thereto which functions as the overflow pipe.

Still another object of this invention is to provide an improved toilet ventilator that is adapted for use in toilets equipped with flush-type valves, said ventilator being connected to the water pipe of the toilet bowl by means of a T-type connection that is provided with a baffle which deflects water from the ventilating pipe during flushing of the toilet.

Other and further objects of this invention will be apparent to those skilled in the art to which it relates from the following specification, claims and drawing in which, briefly:

FIG. I is a view in side elevation partially in section of an embodiment of this bathroom ventilator;

FIG. 2 is a perspective view of the ventilator hood and pipe member connected between it and the overflow pipe of the water tank;

FIG. 3 is a view of an embodiment of this invention adapted for use with a toilet employing a flush-type valve;

FIG. 4 is a detail view of the T connection employed in the embodiment shown in FIG. 3, said T connection being partially broken away to show the baffle positioned therein; and

FIG. 5 is a view of a ventilator duct provided with a venturi which is adapted to be connected to the ventilator pipes of the different embodiments of this invention.

Referring to the drawing in detail there is illustrated a water closet ventilator which is adapted to be used with conventional water closet equipment employing a bowl [0 and a water tank 11 connected thereto. The water tank 11 is provided with an overflow pipe 114 which is of ceramic integral with the back wall of the tank. The overflow pipe may be made of metal separated from the tank wall if desired. A rectangular ventilator channel 14 which is closed on all sides except the rear is positioned in the water tank 11 and is connected to the ventilator pipe 15 which is adapted to flt into the open end thereof. Ventilator pipe 16 is positioned behind the water tank II and the upper end thereof is connected to the pipe 15 and to the pipe 17 at the lower end thereof. Pipe 17 fits into the ventilator pipe 18 which may extend through the floor of the bathroom for example to the blower 19 which is positioned underneath the floor. The blower I9 is provided with an electric motor which is connected to the conventional wiring and is controlled by the electric switch 24. The ventilator channel 14 and connections thereto, as well as the blower 19, are similar to those disclosed in my application Ser. No. 882,815 of which this is a continuation-in-part. Also a suitable filter of activated charcoal may be provided in the pipe 18 as disclosed in said application.

The ventilator channel 14 is provided with a hood 14a which is attached thereto and which forms the inlet into this channel. One end of the short length of pipe 20 is fitted into the hood 14a and the other end is positioned in the overflow which may be made integral with the back wall of the water tank as previously described. A suitable gasket 22 which may be an O- ring, is positioned on the pipe 20 and forms a water tight seal with the inside of the overflow pipe I la. Pipe 20 is provided with an elbow 21 which functions as an overflow connection. One end of elbow 2] extending horizontally at right angles to pipe 20 is connected to pipe 20 and the downwardly extending vertical lower end is positioned below the water line in the tank.

The pipe 20 and the elbow 21 connected thereto are constructed so that the pipe 20 may be assembled with the hood 14a and the overflow pipe 11a. The lower end of pipe 20 clears the top of the overflow pipe Ila when the upper part of the pipe 20 is inserted into the ventilator hood 14a. The pipe 20 is then moved downward until the elbow 21 engages the top of the overflow pipe Ila and the part of pipe 20 carrying the sealing ring 22 is inserted into the overflow pipe Ila. This arrangement facilitates assembly of the device and permits it to be taken apart easily if necessary.

In FIGS. 3 and 4 there is shown a modified embodiment of this invention which is adapted to be employed with a flush-type toilet. The toilet bowl 23 is connected to the water supply pipe 24 which is attached to the bottom end of the T-type connection 25. The upper end of the connection 25 is attached to the flush valve 26 and the side connection is attached to the ventilator pipe 27. The upper end of the pipe 27 is provided with a nozzle which is positioned inside of the ventilator duct 29 that may be of the type used for ventilating commercial buildings. A ventilator blower 30 is positioned in the duct 29 and draws air therethrough in the direction indicated by the arrows. The blower 30 also functions to draw air through the toilet ventilator pipe 27 and nozzle 28 so that the odors are drawn from the toilet bowl 23 into the duct 29.

The T connection 25 is provided with a baffle 250 as shown in FIG. 4. This baffle deflects the water from the pipe 27 when the toilet is being flushed by water flowing through valve 26.

The pipes 16 and 27 of the toilet ventilating apparatus shown in FIGS. I and 3 may be connected to ventilator ducts such as the duct 31 shown in FIG. 5. This duct is provided with a ventilating blower such as the blower 30 shown in FIG. 3 and it provides a movement of air through the Venturi tube 32 which produces suction in the ventilating pipe 33 connected thereto. Thus either the ventilator pipe 16 (shown in FIG. 1) or the ventilator pipe 27 (shown in FIG. 3) may be connected to the pipe 33 (shown in FIG. 5) and the blowers l9 and 30 (shown in FIGS. 1 and 3, respectively) may be eliminated.

While I have shown and described a preferred form of the invention it will be understood that the invention is capable of variation and modification from the form shown so that the scope thereof should be limited only by the scope of the claims appended hereto.

What I claim is:

l. in a toilet bowl ventilator adapted to be attached to the overflow pipe of the water tank which is connected by a pipe to the toilet bowl, the improvement comprising a ventilator pipe having a flattened section extending generally horizontally into the water tank from the outside of said tank above the water line of said tank, said flattened section having an opening in the bottom thereof, a short length of pipe having one end fitted into said opening and having the other end extending a predetermined distance into the overflow pipe of said tank forming a watertight seal with said overflow pipe by means of a gasket, an angular pipe having a substantially horizontal section connected to and opening into the sidewall of said short pipe and a substantially vertically downwardly extending section terminating in an open end below said tank water line, said angular pipe limiting the distance that said short pipe may be inserted into said overflow pipe to said predetermined distance, said angular pipe determining the water level in said tank, and means producing suetion in said ventilator pipe and in said short pipe drawing gases out of the teller bowl through said overflow pipe.

2. In a toilet ventilator as set forth in claim 1, further characterized in that said suction producing means comprises a blower positioned in a ventilator duct and a nozzle connected to said ventilator pipe positioned in said duct so that said blower produces said suction in said ventilator pipe.

3. ln a toilet ventilator as set forth in claim I, further characterized in that said suction producing means comprises a blower positioned in a ventilator duct, a Venturi positioned in said duct, said ventilator pipe being connected to said Venturi so that said blower produces said suction in said ventilator pipe. 

1. In a toilet bowl ventilator adapted to be attached to the overflow pipe of the water tank which is connected by a pipe to the toilet bowl, the improvement comprising a ventilator pipe having a flattened section extending generally horizontally into the water tank from the outside of said tank above the water line of said tank, said flattened section having an opening in the bottom thereof, a short length of pipe having one end fitted into said opening and having the other end extending a predetermined distance into the overflow pipe of said tank forming a watertight seal with said overflow pipe by means of a gasket, an angular pipe having a substantially horizontal section connected to and opening into the sidewall of said short pipe and a substantially vertically downwardly extending section terminating in an open end below said tank water line, said angular pipe limiting the distance that said short pipe may be inserted into said overflow pipe to said predetermined distance, said angular pipe determining the water level in said tank, and means producing suction in said ventilator pipe and in said short pipe drawing gases out of the toiler bowl through said overflow pipe.
 2. In a toilet ventilator as set forth in claim 1, further characterized in that said suction producing means comprises a blower positioned in a ventilator duct and a nozzle connected to said ventilator pipe positioned in said duct so that said blower produces said suction in said ventilator pipe.
 3. In a toilet ventilator as set forth in claim 1, further characterized in that said suction producing means comprises a blower positioned in a ventilator duct, a Venturi positioned in said duct, said ventilator pipe being connected to said Venturi so that said blower produces said suction in said ventilator pipe. 